docs: Adjust Readme to show new commands, add some more to the Makefile

Makefile

@@ -95,3 +95,9 @@ i18n_extract:
 
 i18n_compile:
 	poetry run pybabel compile -f --directory translations/ --domain messages
+
+test:
+	poetry run pytest test_ns.py
+
+lint:
+	poetry run djlint --reformat .

README.md

 # funkwhale.audio
 
 ## Project setup
-```
-# Dependencies for internationalization
-apt-get install gettext jq
-yarn install
-```
+
+In order to develop for the website, you need to have the following packages installed:
+
+- poetry
+- make
 
 ### Compiles and hot-reloads for development
 ```
-yarn run serve
+make devserver
 ```
 
 ### Compiles and minifies for production
 ```
-yarn run build
+make publish
 ```
 
 ### Run your tests
 ```
-yarn run test
+make test
 ```
 
 ### Lints and fixes files
 ```
-yarn run lint
+make lint
+```
+
+### Translations
+
+To extract the strings from the source files, run
+
+```
+make i18n_extract
 ```
 
-### Customize configuration
-See [Configuration Reference](https://cli.vuejs.org/config/).
+Before publishing, the translations need to be compiled:
+
+```
+make i18n_compile
+```